| 摘要 |
PURPOSE:To form a miniature antenna with reduced amount of using materials and without lowering the electric performance by forming the linear conductor part with the conducting paint or the copper foil on the film and then forming a coil via the conductor part and the film formed into a cylindrical shape. CONSTITUTION:Linear conductor part 5 is formed onto refractory film 4 through printing of the conducting paint or sticking of the copper foil, and film 4 is formed into a cylindrical shape with part 5 at the B side connected to the adjacent part 5 at the C side. Thus part 5 forms a coil. Then lead wire 8 and 8' are connected across the coil thus formed, and ferrite antenna core 7 is inserted into film 4 formed cylindrical, thus forming a ferrite antenna. |
